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Finding the Fourth Proportional to 69,472.59, 95,871.78 and 39,267.69

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Solution

The fourth proportional to 69,472.59, 95,871.78 and 39,267.69 is: 54,189.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,472.59 : 95,871.78 = 39,267.69 : x
  2. Step 2: Convert to fraction form
    69,472.59/95,871.78 = 39,267.69/x
  3. Step 3: Cross multiply
    69,472.59x = 95,871.78 × 39,267.69
  4. Step 4: Simplify right side
    69,472.59x = 3,764,663,336.79
  5. Step 5: Solve for x
    x = 3,764,663,336.79/69,472.59
  6. Step 6: Final answer
    x = 54,189.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.